13) Indy H2O is a water bottling company. They are looking at two different bott

Question

13)

Indy H2O is a water bottling company. They are looking at two different bottling manufacturers’ equipment for the purpose of replacing some old equipment. The net weights of a sample of bottles filled by a machine manufactured by WTR, and the net weights of a sample filled by a similar machine manufactured by Target are (in grams):



WTR: 8, 9, 7, 8, 9, and 10

Target: 8, 10, 7, 11, 9, 12, 8, and 9



Testing the claim at the 0.05 level that the mean weight of the bottles filled by the Target machine is greater than the mean weight of the bottles filled by the WTR machine, what is the critical value?

Explanation / Answer

Get df:

df = n1 + n2 - 2

= 6 + 8 - 2

= 12

Using a t table (http://www.tutor-homework.com/statistics_tables/statistics_tables.html) with df = 12, one tail, and alpha = 0.05, gives:

1.782

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.